Writing good handwriting is a reflection of personal quality. I hope you will continue and practice hard. Although your handwriting looks average from the picture above, compared with the average person today, it is still better. You can do the math. Besides, you are memorizing something in a long form, so you won’t be focusing all your energy on the glyphs. This may be the reason.
As for the fonts you are copying, I personally recommend not to practice Pang De. Although he is famous, the fonts are not easy to get started with and it is not easy to improve. I also practiced with him in the early stage, but I didn’t get into it right away. If you can keep practicing like this, it shows that you have good perseverance, which is the prerequisite for practicing calligraphy well. Please change the font you copy to Tian Yingzhang’s. My advice to others is to copy his font, it’s easier to start with. Generally, it is enough to copy two or three books seriously, but the prerequisite is that you must be serious and attentive, and understand why each word is written that way.
You can start running script long ago. Originally running script was produced at the same time as regular script, and chapter cursive script was produced earlier. You don’t need to copy regular script deliberately. You can also do running script at the same time. In this way, you will better understand the response relationship between strokes. Is writing regular script as good as writing regular script?~~
The method of copying should be noted: first trace the red, then trace, Just write it down, and finally, write it silently, and that's usually enough. I hope you can write well, and you must have confidence. Work hard~